Não informado. (1939). Bulletin of the Oxford University Institute of Statistics. Oxford University Institute of Statistics.
Chicago (17e ed.) BronvermeldingNão informado. Bulletin of the Oxford University Institute of Statistics. Oxford, Inglaterra: Oxford University Institute of Statistics, 1939.
MLA (8e ed.) BronvermeldingNão informado. Bulletin of the Oxford University Institute of Statistics. Oxford University Institute of Statistics, 1939.
Let op: Deze citaties zijn niet altijd 100% accuraat.